.ci/deps.sh: Use fork of gotype

The main repository deleted gotype in
golang/tools@f5a6ee1e

As the coala-bears builds depend on fetching a working gotype,
fork https://github.com/jayvdb/gotype has been created and used.

Fixes coala#1472

.ci/deps.sh

@@ -99,7 +99,7 @@ R -q -e 'install.packages("formatR")'
 go get -u github.com/golang/lint/golint
 go get -u golang.org/x/tools/cmd/goimports
 go get -u sourcegraph.com/sqs/goreturns
-go get -u golang.org/x/tools/cmd/gotype
+go get -u github.com/jayvdb/gotype
 go get -u github.com/kisielk/errcheck
 
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